Ganondorf looks as he should look. He's a powerful wizard-swordsman, he's not an athlete. He can't be as athletic as Captain Falcon, he's not flexible. That Ganondorf running animation is how a swordless Ganondorf would run. Yeah, maybe he doesn't look good in all of his attacks, but that's because he has a freaking armor, he can't move as easily as the other characters. A Ganondorf kick would look as it looks in this game.
Ganondorf's animations are what they should be. Ganondorf should use his sword (so his animations would be different), but a swordless Ganondorf would look as he looks in Brawl.
His model is pretty good. I love his armor and his face, although I liked his heavy metal hair from Ocarina of Time more. Both the animations and the model are pretty good, although they can be improved.